Import/export HS code 731821: Spring washers and lock washers
Washers designed to prevent loosening, often used with screws and bolts
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| United States | 8,244,503 |
| Germany | 7,823,949 |
| Sweden | 4,359,915 |
| China | 2,581,971 |
| Ireland | 1,809,984 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 4,507,991 | 3,736,512 | -771,479 |
| Germany | 3,658,674 | 4,165,275 | +506,601 |
| Sweden | 2,378,497 | 1,981,418 | -397,079 |
| China | 1,235,991 | 1,345,980 | +109,989 |
| Ireland | 1,025,354 | 784,630 | -240,724 |
| France | 846,051 | 894,951 | +48,900 |
| Poland | 464,266 | 249,941 | -214,325 |
| Italy | 352,910 | 335,723 | -17,187 |
| Netherlands | 487,651 | 161,724 | -325,927 |
| Japan | 363,546 | 220,117 | -143,429 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| Germany | 6,920,275 |
| United States | 6,824,029 |
| China | 4,535,363 |
| Sweden | 4,533,166 |
| France | 1,464,392 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Germany | 3,297,128 | 3,623,147 | +326,019 |
| United States | 4,006,130 | 2,817,899 | -1,188,231 |
| China | 1,865,290 | 2,670,073 | +804,783 |
| Sweden | 2,456,693 | 2,076,473 | -380,220 |
| France | 617,362 | 847,030 | +229,668 |
| Italy | 506,616 | 523,464 | +16,848 |
| Poland | 442,988 | 267,288 | -175,700 |
| Japan | 398,064 | 247,844 | -150,220 |
| India | 226,953 | 354,526 | +127,573 |
| Spain | 230,042 | 334,331 | +104,289 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 60 |
| West Midlands | 57 |
| Surrey, East and West Sussex | 36 |
| Greater Manchester | 33 |
| Inner London - West | 32 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 41 | 42 | +1 |
| West Midlands | 49 | 38 | -11 |
| Surrey, East and West Sussex | 29 | 21 | -8 |
| Greater Manchester | 26 | 21 | -5 |
| Inner London - West | 16 | 24 | +8 |
| Bedfordshire and Hertfordshire | 18 | 18 | +0 |
| Herefordshire, Worcestershire and Warwickshire | 20 | 18 | -2 |
| Shropshire and Staffordshire | 16 | 21 | +5 |
| Derbyshire and Nottinghamshire | 18 | 16 | -2 |
| Hampshire and Isle of Wight | 16 | 13 | -3 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 15,591,809 |
| Sea transport (not vehicle on ferry) | 7,746,821 |
| Roll on Roll off (RORO) | 7,234,732 |
| Other | 2,088,271 |
| Road transport | 80,717 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 7,972,431 | 7,619,378 | -353,053 |
| Sea transport (not vehicle on ferry) | 4,054,880 | 3,691,941 | -362,939 |
| Roll on Roll off (RORO) | 3,478,191 | 3,756,541 | +278,350 |
| Other | 1,272,560 | 815,711 | -456,849 |
| Road transport | 33,628 | 47,089 | +13,461 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 3,713,757 |
| Birmingham Airport | 3,457,121 |
| Dover | 3,415,843 |
| Glasgow Airport | 2,661,741 |
| Thamesport | 2,515,610 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| East Midlands Airport | 1,682,462 | 2,031,295 | +348,833 |
| Birmingham Airport | 1,707,786 | 1,749,335 | +41,549 |
| Dover | 1,398,221 | 2,017,622 | +619,401 |
| Glasgow Airport | 1,292,898 | 1,368,843 | +75,945 |
| Thamesport | 1,430,893 | 1,084,717 | -346,176 |
| London Heathrow Airport | 1,437,792 | 1,023,812 | -413,980 |
| Felixstowe | 1,124,080 | 1,109,994 | -14,086 |
| 000 | 1,272,560 | 815,711 | -456,849 |
| London Stansted Airport | 914,950 | 1,001,420 | +86,470 |
| Eurotunnel | 937,932 | 879,028 | -58,904 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Wholesale trade, except of motor vehicles and motorcycles | 131 |
| Manufacture of machinery and equipment n.e.c. | 72 |
| Manufacture of fabricated metal products, except machinery and equipment | 65 |
| Repair and installation of machinery and equipment | 52 |
| Other manufacturing | 38 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2025-11 | 118 |
| 2025-10 | 100 |
| 2025-09 | 102 |
| 2025-08 | 103 |
| 2025-07 | 113 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 334 |
| 1m-15m | 197 |
| 15m-54m | 60 |
| Other | 49 |
| 0-1m | 19 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Germany | 14,092,727 |
| Canada | 4,042,940 |
| United States | 3,439,208 |
| Saudi Arabia | 2,660,797 |
| Netherlands | 1,836,788 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Germany | 2,330,322 | 11,762,405 | +9,432,083 |
| Canada | 1,542,111 | 2,500,829 | +958,718 |
| United States | 1,454,879 | 1,984,329 | +529,450 |
| Saudi Arabia | 1,668,011 | 992,786 | -675,225 |
| Netherlands | 692,124 | 1,144,664 | +452,540 |
| France | 952,646 | 487,373 | -465,273 |
| Ireland | 711,472 | 606,130 | -105,342 |
| China | 473,044 | 533,204 | +60,160 |
| India | 402,423 | 419,896 | +17,473 |
| China, Hong Kong Special Administrative Region | 312,770 | 440,406 | +127,636 |
Exports by country of origin
What this shows: Export volume by production origin country. For re-exports, indicates where goods originated before UK export.
Top 5 values
| Origin | £ |
|---|---|
| XI | 285,265 |
| Ireland | 269,415 |
| Germany | 156,444 |
| Nicaragua | 82,874 |
| India | 10,379 |
Export origin countries rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| XI | 164,830 | 120,435 | -44,395 |
| Ireland | 88,041 | 181,374 | +93,333 |
| Germany | 153,798 | 2,646 | -151,152 |
| Nicaragua | 79,913 | 2,961 | -76,952 |
| India | 10,116 | 263 | -9,853 |
| United States | 2,289 | 4,560 | +2,271 |
| China | 1,945 | 2,652 | +707 |
| Italy | 4,468 | 1 | -4,467 |
| XU | 1,091 | 774 | -317 |
| Sweden | 53 | 757 | +704 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 20,505,853 |
| Roll on Roll off (RORO) | 18,073,466 |
| Sea transport (not vehicle on ferry) | 1,959,922 |
| Other | 824,965 |
| Road transport | 168,930 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 10,577,993 | 9,927,860 | -650,133 |
| Roll on Roll off (RORO) | 4,133,168 | 13,940,298 | +9,807,130 |
| Sea transport (not vehicle on ferry) | 1,240,809 | 719,113 | -521,696 |
| Other | 507,825 | 317,140 | -190,685 |
| Road transport | 168,930 | 0 | -168,930 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Hull | 10,455,063 |
| London Heathrow Airport | 6,790,088 |
| Dover / Eurotunnel | 6,589,500 |
| East Midlands Airport | 6,545,964 |
| ZLC | 2,001,928 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Hull | 41,663 | 10,413,400 | +10,371,737 |
| London Heathrow Airport | 3,013,549 | 3,776,539 | +762,990 |
| Dover / Eurotunnel | 3,695,965 | 2,893,535 | -802,430 |
| East Midlands Airport | 3,484,247 | 3,061,717 | -422,530 |
| ZLC | 1,065,347 | 936,581 | -128,766 |
| Warton Aerodrome | 1,403,456 | 559,376 | -844,080 |
| London Stansted Airport | 767,999 | 1,042,069 | +274,070 |
| London Gateway Port | 597,601 | 386,329 | -211,272 |
| 000 | 507,825 | 317,140 | -190,685 |
| Manchester Airport | 414,848 | 370,407 | -44,441 |
Quick facts
HS code: 731821
Coverage: United Kingdom, most metrics for the last 24 months
Description: Washers designed to prevent loosening, often used with screws and bolts